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M2.4 earthquake 99 km WNW of Homer, Alaska, United States

A magnitude 2.4 earthquake struck 99 km WNW of Homer, Alaska, United States at 07:56 local time (15:56 UTC) on 4 Oct 2026, at a depth of 133 km, according to USGS. The solution is preliminary and may be revised.

revised from M1.4

Data: USGS · updated 2026-10-04 16:01 UTC · automatic solution

Magnitude
2.4micro
local magnitude (Richter) (ml)
revised from 1.4
Depth
132.7 km
Status
Automatic
Origin time
2026-10-04 15:56:41 UTC
Local: 4 Oct 2026, 07:56:41 (America/Anchorage)
Epicentre
59.889° N, 153.240° W

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Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
HomerAlaska, United States · pop. 5,51599 kmINot felt
KalifornskyAlaska, United States · pop. 7,850123 kmINot felt
AnchorageAlaska, United States · pop. 289,600235 kmINot felt

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses USGS · AK.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · AKheadlineAlaska Earthquake Center via U.S. Geological Survey2.4 mlwas 2.2132.7 km59.89° N, 153.24° W–Automatic · 3 revisions

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How big was it?

Usually not felt. Recorded by nearby seismometers; thousands occur worldwide every day.

It released roughly the energy of 60 kg of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 133 km this was a intermediate-depth earthquake, which spreads shaking over a wider area but less intensely.

M2.4 releases about 32× the energy of M1.4, and its waves are about 10× taller on a seismogram. Energy: 60 kg of TNT vs 2 kg of TNT.

Each square is the energy of one M1.4. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

25 later earthquakes within 30 km; the largest was M2.0 31 min ago. 77 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.4

25 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.47-0.9-2
1.92-0.81
13.451.9107
14.02-0.91
16.591.2118
16.65-0.1-1
16.900.45
20.850.75
21.350.55
24.081.8139
24.310.35
25.190.21
25.490.30
32.75-1.33
32.790.45
36.27-0.85
41.46-0.80
42.15-0.62
43.59-0.91
44.87-0.91
45.16-1.20
45.42-0.92
50.390.87
51.241.097
56.912.0172
  1. 2.0113 km WNW of Homer, Alaska, United States10-07 00:51
  2. 1.992 km W of Homer, Alaska, United States10-05 05:23
  3. 1.8100 km WNW of Homer, Alaska, United States10-05 16:01
  4. 1.292 km WNW of Homer, Alaska, United States10-05 08:32
  5. 1.077 km WNW of Homer, Alaska, United States10-06 19:11
  6. 0.8101 km WNW of Homer, Alaska, United States10-06 18:19
  7. 0.792 km WNW of Homer, Alaska, United States10-05 12:47
  8. 0.598 km WNW of Homer, Alaska, United States10-05 13:17
  9. 0.497 km WNW of Homer, Alaska, United States10-05 08:50
  10. 0.498 km WNW of Homer, Alaska, United States10-06 00:44
  11. 0.394 km WNW of Homer, Alaska, United States10-05 16:15
  12. 0.398 km WNW of Homer, Alaska, United States10-05 17:25
  13. 0.2100 km WNW of Homer, Alaska, United States10-05 17:08
  14. -0.195 km WNW of Homer, Alaska, United States10-05 08:35
  15. -0.6100 km WNW of Homer, Alaska, United States10-06 10:05
  16. -0.893 km WNW of Homer, Alaska, United States10-04 17:51
  17. -0.897 km WNW of Homer, Alaska, United States10-06 09:24
  18. -0.896 km WNW of Homer, Alaska, United States10-06 04:12
  19. -0.997 km WNW of Homer, Alaska, United States10-04 16:24
  20. -0.996 km WNW of Homer, Alaska, United States10-06 11:32
  21. -0.997 km WNW of Homer, Alaska, United States10-05 05:58
  22. -0.996 km WNW of Homer, Alaska, United States10-06 12:49
  23. -0.997 km WNW of Homer, Alaska, United States10-06 13:21
  24. -1.296 km WNW of Homer, Alaska, United States10-06 13:06
  25. -1.397 km WNW of Homer, Alaska, United States10-06 00:41

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Reports on SeismoAtlas

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Event id aka2026tqzyhk. First recorded here 4 Oct 2026, 15:58:18 UTC. Solutions: USGS · AK (usgs:aka2026tqzyhk). Cite as: SeismoAtlas, “M2.4 earthquake 99 km WNW of Homer, Alaska, United States”, https://seismoatlas.com/earthquake/aka2026tqzyhk-m2-4-earthquake-99-km-wnw-of-homer-alaska-united-states, data from USGS.

JSON: /api/v1/events/aka2026tqzyhk. SeismoAtlas is not an official warning service.